More sweltering heat is expected Wednesday after the Lowcountry flirted with a record again Tuesday. The 99-degree high missed by only a degree. Meanwhile, the rainmaker tropical storm sweeping out of Texas likely won’t budge the heat here, forecasters say.

Conditions Wednesday will be very similar to Tuesday, said meteorologist Pete Mohlin, National Weather Service, Charleston. On Tuesday, some locations hit 100 degrees or even higher. Heat indexes hit 110 degrees or above. The heat index is a “real feel” temperature measure combining heat and humidity.

The twin high-pressure weather systems clamping a hot lid on the Carolinas are expected to push Tropical Storm Bill’s clouds and rain “well north,” said meteorologist John Quagliariello, of the weather service in Charleston. The only small chance of any relief would be if one of the “twin” high pressures, drifts farther south and lets “a bit” of atmospheric moisture spill from the storm, said meteorologist Shea Gibson with WeatherFlow.

The first break here will come later in the week, when the heat wave begins to nudge east over the ocean. Temperatures will fall to the lower 90s, with a chance of afternoon thunderstorms. But the humidity will rise, so heat indexes in the triple digits will still be the rule.

Tuesday’s near-record temperature followed Monday’s record tying 98 degrees.

Meanwhile, Tropical Storm Bill is the second named Atlantic basin storm and the second one to make landfall in the United States this season, making the Southeast and Gulf states “two-for-two so far for landfalls this hurricane season,” said meteorologist Jeff Masters with Weather Underground. Tropical Storm Ana, the first named storm of the season, hit South Carolina on May 10.

The last time the first two named storms of the season both made landfall in the U.S. was in 2001, Masters said.

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